Spatial ecology, phenological variability and moulting patterns of the endangered Atlantic petrel, Pterodroma incerta
Insights into the year-round movements and behaviour of seabirds are essential to better understand their ecology and to evaluate possible threats at sea. The Atlantic petrel Pterodroma incerta is an Endangered gadfly petrel endemic to the South Atlantic Ocean, with virtually the entire population b...
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ftubarcepubl:oai:diposit.ub.edu:2445/151170 2024-02-11T10:08:36+01:00 Spatial ecology, phenological variability and moulting patterns of the endangered Atlantic petrel, Pterodroma incerta Pastor Prieto, Marina Ramos i Garcia, Raül Zajková, Zuzana Reyes-González, José Manuel Rivas, Manuel L. Ryan, Peter G. González-Solís, Jacob 2019-10-05 18 p. application/pdf http://hdl.handle.net/2445/151170 eng eng Inter-Research Reproducció del document publicat a: https://doi.org/10.3354/esr00991 Endangered Species Research, 2019, vol. 40, p. 189-206 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.3354/esr00991 1863-5407 http://hdl.handle.net/2445/151170 692014 cc-by (c) Pastor Prieto, Marina et al., 2019 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess Ocells marins Atlàntic Oceà Sea birds Atlantic Ocean info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 ftubarcepubl https://doi.org/10.3354/esr00991 2024-01-24T01:08:36Z Insights into the year-round movements and behaviour of seabirds are essential to better understand their ecology and to evaluate possible threats at sea. The Atlantic petrel Pterodroma incerta is an Endangered gadfly petrel endemic to the South Atlantic Ocean, with virtually the entire population breeding on Gough Island (Tristan da Cunha archipelago). We describe adult phenology, habitat preferences and at-sea activity patterns for each phenological phase of the annual cycle and refine current knowledge about its distribution, by using light-level geolocators on 13 adults over 1-3 consecutive years. We also ascertained moulting pattern through stable isotope analysis (SIA) of nitrogen and carbon in feathers from 8 carcasses. On average, adults started their post-breeding migration on 25 December, taking 10 d to reach their non-breeding areas on the South American shelf slope. The pre-breeding migration started around 11 April and took 5 d. From phenological data, we found evidence of carry-over effects between successive breeding periods. The year-round distribution generally coincided with the potential distribution obtained from habitat modelling, except during the non-breeding and pre-laying exodus periods, when birds only used the western areas of the South Atlantic. Moulting occurred during the non-breeding period, when birds spent more time on the water, and results from SIA helped us to distinguish feathers grown around Gough Island from those grown in the non-breeding area. Overall, our results bring important new insights into the spatial ecology of this Endangered seabird, which should help improve conservation strategies in the South Atlantic Ocean. Article in Journal/Newspaper South Atlantic Ocean Dipòsit Digital de la Universitat de Barcelona Tristan ENVELOPE(140.900,140.900,-66.735,-66.735) Gough ENVELOPE(159.367,159.367,-81.633,-81.633) Endangered Species Research 40 189 206 |
institution |
Open Polar |
collection |
Dipòsit Digital de la Universitat de Barcelona |
op_collection_id |
ftubarcepubl |
language |
English |
topic |
Ocells marins Atlàntic Oceà Sea birds Atlantic Ocean |
spellingShingle |
Ocells marins Atlàntic Oceà Sea birds Atlantic Ocean Pastor Prieto, Marina Ramos i Garcia, Raül Zajková, Zuzana Reyes-González, José Manuel Rivas, Manuel L. Ryan, Peter G. González-Solís, Jacob Spatial ecology, phenological variability and moulting patterns of the endangered Atlantic petrel, Pterodroma incerta |
topic_facet |
Ocells marins Atlàntic Oceà Sea birds Atlantic Ocean |
description |
Insights into the year-round movements and behaviour of seabirds are essential to better understand their ecology and to evaluate possible threats at sea. The Atlantic petrel Pterodroma incerta is an Endangered gadfly petrel endemic to the South Atlantic Ocean, with virtually the entire population breeding on Gough Island (Tristan da Cunha archipelago). We describe adult phenology, habitat preferences and at-sea activity patterns for each phenological phase of the annual cycle and refine current knowledge about its distribution, by using light-level geolocators on 13 adults over 1-3 consecutive years. We also ascertained moulting pattern through stable isotope analysis (SIA) of nitrogen and carbon in feathers from 8 carcasses. On average, adults started their post-breeding migration on 25 December, taking 10 d to reach their non-breeding areas on the South American shelf slope. The pre-breeding migration started around 11 April and took 5 d. From phenological data, we found evidence of carry-over effects between successive breeding periods. The year-round distribution generally coincided with the potential distribution obtained from habitat modelling, except during the non-breeding and pre-laying exodus periods, when birds only used the western areas of the South Atlantic. Moulting occurred during the non-breeding period, when birds spent more time on the water, and results from SIA helped us to distinguish feathers grown around Gough Island from those grown in the non-breeding area. Overall, our results bring important new insights into the spatial ecology of this Endangered seabird, which should help improve conservation strategies in the South Atlantic Ocean. |
format |
Article in Journal/Newspaper |
author |
Pastor Prieto, Marina Ramos i Garcia, Raül Zajková, Zuzana Reyes-González, José Manuel Rivas, Manuel L. Ryan, Peter G. González-Solís, Jacob |
author_facet |
Pastor Prieto, Marina Ramos i Garcia, Raül Zajková, Zuzana Reyes-González, José Manuel Rivas, Manuel L. Ryan, Peter G. González-Solís, Jacob |
author_sort |
Pastor Prieto, Marina |
title |
Spatial ecology, phenological variability and moulting patterns of the endangered Atlantic petrel, Pterodroma incerta |
title_short |
Spatial ecology, phenological variability and moulting patterns of the endangered Atlantic petrel, Pterodroma incerta |
title_full |
Spatial ecology, phenological variability and moulting patterns of the endangered Atlantic petrel, Pterodroma incerta |
title_fullStr |
Spatial ecology, phenological variability and moulting patterns of the endangered Atlantic petrel, Pterodroma incerta |
title_full_unstemmed |
Spatial ecology, phenological variability and moulting patterns of the endangered Atlantic petrel, Pterodroma incerta |
title_sort |
spatial ecology, phenological variability and moulting patterns of the endangered atlantic petrel, pterodroma incerta |
publisher |
Inter-Research |
publishDate |
2019 |
url |
http://hdl.handle.net/2445/151170 |
long_lat |
ENVELOPE(140.900,140.900,-66.735,-66.735) ENVELOPE(159.367,159.367,-81.633,-81.633) |
geographic |
Tristan Gough |
geographic_facet |
Tristan Gough |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
Reproducció del document publicat a: https://doi.org/10.3354/esr00991 Endangered Species Research, 2019, vol. 40, p. 189-206 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.3354/esr00991 1863-5407 http://hdl.handle.net/2445/151170 692014 |
op_rights |
cc-by (c) Pastor Prieto, Marina et al., 2019 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/esr00991 |
container_title |
Endangered Species Research |
container_volume |
40 |
container_start_page |
189 |
op_container_end_page |
206 |
_version_ |
1790608036393385984 |